diff --git a/EnvelopeGenerator.Application/DTOs/ConfigDto.cs b/EnvelopeGenerator.Application/DTOs/ConfigDto.cs
index 721d7524..17dfc4ff 100644
--- a/EnvelopeGenerator.Application/DTOs/ConfigDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/ConfigDto.cs
@@ -3,19 +3,45 @@ using Microsoft.AspNetCore.Mvc;
 using System.ComponentModel.DataAnnotations.Schema;
 using System.Text.Json.Serialization;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing configuration settings.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class ConfigDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record ConfigDto(
-        string DocumentPath,
-        int SendingProfile,
-        string SignatureHost,
-        string ExternalProgramName,
-        string ExportPath) : IUnique<int>
-    {
-        [NotMapped]
-        [JsonIgnore]
-        [Obsolete("Configuration does not have an ID; it represents a single table in the database.")]
-        public int Id => throw new InvalidOperationException("This configuration does not support an ID as it represents a single row in the database.");
-    };
+    /// <summary>
+    /// Gets or sets the path to the document.
+    /// </summary>
+    public string DocumentPath { get; set; }
+
+    /// <summary>
+    /// Gets or sets the sending profile identifier.
+    /// </summary>
+    public int SendingProfile { get; set; }
+
+    /// <summary>
+    /// Gets or sets the signature host URL or name.
+    /// </summary>
+    public string SignatureHost { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the external program.
+    /// </summary>
+    public string ExternalProgramName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the path where exports will be saved.
+    /// </summary>
+    public string ExportPath { get; set; }
+
+    /// <summary>
+    /// Gets the ID of the configuration.
+    /// This DTO represents a single row in the database and does not support an ID.
+    /// </summary>
+    [NotMapped]
+    [JsonIgnore]
+    [Obsolete("Configuration does not have an ID; it represents a single table in the database.")]
+    public int Id => throw new InvalidOperationException("This configuration does not support an ID as it represents a single row in the database.");
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/DocumentReceiverElementDto.cs b/EnvelopeGenerator.Application/DTOs/DocumentReceiverElementDto.cs
index 04b9d0ad..8927357b 100644
--- a/EnvelopeGenerator.Application/DTOs/DocumentReceiverElementDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/DocumentReceiverElementDto.cs
@@ -1,26 +1,96 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a positioned element assigned to a document receiver.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class DocumentReceiverElementDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record DocumentReceiverElementDto(
-        int Id,
-        int DocumentId,
-        int ReceiverId,
-        int ElementType,
-        double X,
-        double Y,
-        double Width,
-        double Height,
-        int Page,
-        bool Required,
-        string? Tooltip,
-        bool ReadOnly,
-        int AnnotationIndex,
-        DateTime AddedWhen,
-        DateTime? ChangedWhen,
-        double Top,
-        double Left
-        ): IUnique<int>;
+    /// <summary>
+    /// Gets or sets the unique identifier of the element.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the identifier of the associated document.
+    /// </summary>
+    public int DocumentId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the identifier of the receiver.
+    /// </summary>
+    public int ReceiverId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the type of the element.
+    /// </summary>
+    public int ElementType { get; set; }
+
+    /// <summary>
+    /// Gets or sets the X coordinate of the element.
+    /// </summary>
+    public double X { get; set; }
+
+    /// <summary>
+    /// Gets or sets the Y coordinate of the element.
+    /// </summary>
+    public double Y { get; set; }
+
+    /// <summary>
+    /// Gets or sets the width of the element.
+    /// </summary>
+    public double Width { get; set; }
+
+    /// <summary>
+    /// Gets or sets the height of the element.
+    /// </summary>
+    public double Height { get; set; }
+
+    /// <summary>
+    /// Gets or sets the page number where the element appears.
+    /// </summary>
+    public int Page { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether the element is required.
+    /// </summary>
+    public bool Required { get; set; }
+
+    /// <summary>
+    /// Gets or sets the tooltip text for the element.
+    /// </summary>
+    public string? Tooltip { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether the element is read-only.
+    /// </summary>
+    public bool ReadOnly { get; set; }
+
+    /// <summary>
+    /// Gets or sets the annotation index for ordering or reference.
+    /// </summary>
+    public int AnnotationIndex { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the element was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the element was last changed, if applicable.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the top position of the element (in layout terms).
+    /// </summary>
+    public double Top { get; set; }
+
+    /// <summary>
+    /// Gets or sets the left position of the element (in layout terms).
+    /// </summary>
+    public double Left { get; set; }
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/DocumentStatusDto.cs b/EnvelopeGenerator.Application/DTOs/DocumentStatusDto.cs
index a098746a..681ba505 100644
--- a/EnvelopeGenerator.Application/DTOs/DocumentStatusDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/DocumentStatusDto.cs
@@ -1,18 +1,51 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing the status of a document for a specific receiver.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class DocumentStatusDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record DocumentStatusDto(
-        int Id,
-        int EnvelopeId,
-        int ReceiverId,
-        int Status,
-        DateTime? StatusChangedWhen,
-        DateTime AddedWhen,
-        DateTime? ChangedWhen) : IUnique<int>
-    {
-        public string? Value { get; set; }
-    };
+    /// <summary>
+    /// Gets or sets the unique identifier of the document status entry.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the ID of the associated envelope.
+    /// </summary>
+    public int EnvelopeId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the ID of the receiver associated with this status.
+    /// </summary>
+    public int ReceiverId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the current status code.
+    /// </summary>
+    public int Status { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the status was changed.
+    /// </summary>
+    public DateTime? StatusChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this record was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this record was last changed.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the display value associated with the status.
+    /// </summary>
+    public string? Value { get; set; }
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/EnvelopeCertificateDto.cs b/EnvelopeGenerator.Application/DTOs/EnvelopeCertificateDto.cs
index 49852dce..d7782e64 100644
--- a/EnvelopeGenerator.Application/DTOs/EnvelopeCertificateDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/EnvelopeCertificateDto.cs
@@ -1,16 +1,51 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing certificate information for an envelope.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeCertificateDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record EnvelopeCertificateDto(
-        int Id,
-        int EnvelopeId,
-        string EnvelopeUuid,
-        string EnvelopeSubject,
-        int CreatorId,
-        string CreatorName,
-        string CreatorEmail,
-        int EnvelopeStatus) : IUnique<int>;
+    /// <summary>
+    /// Gets the unique identifier of the certificate.
+    /// </summary>
+    public int Id { get; init; }
+
+    /// <summary>
+    /// Gets the envelope ID associated with the certificate.
+    /// </summary>
+    public int EnvelopeId { get; init; }
+
+    /// <summary>
+    /// Gets the UUID of the envelope.
+    /// </summary>
+    public string EnvelopeUuid { get; init; }
+
+    /// <summary>
+    /// Gets the subject of the envelope.
+    /// </summary>
+    public string EnvelopeSubject { get; init; }
+
+    /// <summary>
+    /// Gets the ID of the creator of the envelope.
+    /// </summary>
+    public int CreatorId { get; init; }
+
+    /// <summary>
+    /// Gets the name of the creator.
+    /// </summary>
+    public string CreatorName { get; init; }
+
+    /// <summary>
+    /// Gets the email address of the creator.
+    /// </summary>
+    public string CreatorEmail { get; init; }
+
+    /// <summary>
+    /// Gets the current status of the envelope.
+    /// </summary>
+    public int EnvelopeStatus { get; init; }
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/EnvelopeDocumentDto.cs b/EnvelopeGenerator.Application/DTOs/EnvelopeDocumentDto.cs
index 97ca20c2..92139c3f 100644
--- a/EnvelopeGenerator.Application/DTOs/EnvelopeDocumentDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/EnvelopeDocumentDto.cs
@@ -1,15 +1,36 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a document within an envelope, including optional binary data and form elements.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeDocumentDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record EnvelopeDocumentDto
-    (
-        int Id,
-        int EnvelopeId,
-        DateTime AddedWhen,
-        byte[]? ByteData = null,
-        IEnumerable<DocumentReceiverElementDto>? Elements = null
-    ) : IUnique<int>;
-}
\ No newline at end of file
+    /// <summary>
+    /// Gets or sets the unique identifier of the document.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the envelope ID to which the document belongs.
+    /// </summary>
+    public int EnvelopeId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the date and time when the document was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the binary data of the document, if available.
+    /// </summary>
+    public byte[]? ByteData { get; set; }
+
+    /// <summary>
+    /// Gets or sets the collection of elements associated with the document for receiver interactions, if any.
+    /// </summary>
+    public IEnumerable<DocumentReceiverElementDto>? Elements { get; set; }
+}
diff --git a/EnvelopeGenerator.Application/DTOs/EnvelopeDto.cs b/EnvelopeGenerator.Application/DTOs/EnvelopeDto.cs
index 4fa36caf..e1e82489 100644
--- a/EnvelopeGenerator.Application/DTOs/EnvelopeDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/EnvelopeDto.cs
@@ -4,53 +4,52 @@ using DigitalData.UserManager.Application.DTOs.User;
 using EnvelopeGenerator.Domain.Entities;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+[ApiExplorerSettings(IgnoreApi = true)]
+public record EnvelopeDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record EnvelopeDto() : IUnique<int>
-    {
-		public int Id { get; set; }
+	public int Id { get; set; }
 
-		public int UserId { get; set; }
+	public int UserId { get; set; }
 
-		public int Status { get; set; }
+	public int Status { get; set; }
 
-		public string StatusName { get; set; }
+	public string StatusName { get; set; }
 
-        public string Uuid { get; set; }
+    public string Uuid { get; set; }
 
-		[TemplatePlaceholder("[MESSAGE]")]
-		public string Message { get; set; }
+	[TemplatePlaceholder("[MESSAGE]")]
+	public string Message { get; set; }
 
-		public DateTime AddedWhen { get; set; }
+	public DateTime AddedWhen { get; set; }
 
-		public DateTime? ChangedWhen { get; set; }
+	public DateTime? ChangedWhen { get; set; }
 
-		[TemplatePlaceholder("[DOCUMENT_TITLE]")]
-		public string Title { get; set; }
+	[TemplatePlaceholder("[DOCUMENT_TITLE]")]
+	public string Title { get; set; }
 
-		public int? ContractType { get; set; }
+	public int? ContractType { get; set; }
 
-		public string Language { get; set; }
+	public string Language { get; set; }
 
-		public int? EnvelopeTypeId { get; set; }
+	public int? EnvelopeTypeId { get; set; }
 
-		public int? CertificationType { get; set; }
+	public int? CertificationType { get; set; }
 
-		public bool? UseAccessCode { get; set; }
+	public bool? UseAccessCode { get; set; }
 
-        public bool TFAEnabled { get; init; }
+    public bool TFAEnabled { get; init; }
 
-		public UserReadDto? User { get; set; }
+	public UserReadDto? User { get; set; }
 
-		public EnvelopeType? EnvelopeType { get; set; }
+	public EnvelopeType? EnvelopeType { get; set; }
 
-		public string? EnvelopeTypeTitle { get; set; }
+	public string? EnvelopeTypeTitle { get; set; }
 
-		public bool IsAlreadySent { get; set; }
+	public bool IsAlreadySent { get; set; }
 
-        public byte[]? DocResult { get; init; }
+    public byte[]? DocResult { get; init; }
 
-        public IEnumerable<EnvelopeDocumentDto>? Documents { get; set; }
-	}
+    public IEnumerable<EnvelopeDocumentDto>? Documents { get; set; }
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/EnvelopeHistory/EnvelopeHistoryCreateDto.cs b/EnvelopeGenerator.Application/DTOs/EnvelopeHistory/EnvelopeHistoryCreateDto.cs
index 731b33a1..34235c5b 100644
--- a/EnvelopeGenerator.Application/DTOs/EnvelopeHistory/EnvelopeHistoryCreateDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/EnvelopeHistory/EnvelopeHistoryCreateDto.cs
@@ -1,12 +1,34 @@
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs.EnvelopeHistory
+namespace EnvelopeGenerator.Application.DTOs.EnvelopeHistory;
+
+/// <summary>
+/// Data Transfer Object for creating a new envelope history record.
+/// </summary>
+public class EnvelopeHistoryCreateDto
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record EnvelopeHistoryCreateDto(
-        int EnvelopeId,
-        string UserReference,
-        int Status,
-        DateTime? ActionDate,
-        string? Comment = null);
+    /// <summary>
+    /// Gets or sets the identifier of the envelope.
+    /// </summary>
+    public int EnvelopeId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the user reference associated with the action.
+    /// </summary>
+    public required string UserReference { get; set; }
+
+    /// <summary>
+    /// Gets or sets the status of the envelope at the time of the action.
+    /// </summary>
+    public int Status { get; set; }
+
+    /// <summary>
+    /// Gets or sets the date and time when the action occurred.
+    /// </summary>
+    public DateTime? ActionDate { get; set; }
+
+    /// <summary>
+    /// Gets or sets an optional comment related to the action.
+    /// </summary>
+    public string? Comment { get; set; }
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/EnvelopeTypeDto.cs b/EnvelopeGenerator.Application/DTOs/EnvelopeTypeDto.cs
index 05be1eac..6ab24f4c 100644
--- a/EnvelopeGenerator.Application/DTOs/EnvelopeTypeDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/EnvelopeTypeDto.cs
@@ -1,23 +1,86 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a type of envelope with its configuration settings.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class EnvelopeTypeDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record EnvelopeTypeDto(
-        int Id,
-        string Title,
-        string Language,
-        int? ExpiresDays,
-        int? CertificationType,
-        bool? UseAccessCode,
-        int? FinalEmailToCreator,
-        int? FinalEmailToReceivers,
-        DateTime AddedWhen,
-        DateTime? ChangedWhen,
-        int? ExpiresWarningDays,
-        bool? SendReminderEmails,
-        int? FirstReminderDays,
-        int? ReminderIntervalDays,
-        int? ContractType) : IUnique<int>;
+    /// <summary>
+    /// Gets or sets the unique identifier of the envelope type.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the title of the envelope type.
+    /// </summary>
+    public string Title { get; set; }
+
+    /// <summary>
+    /// Gets or sets the language code used in this envelope type.
+    /// </summary>
+    public string Language { get; set; }
+
+    /// <summary>
+    /// Gets or sets the number of days after which the envelope expires.
+    /// </summary>
+    public int? ExpiresDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets the certification type identifier.
+    /// </summary>
+    public int? CertificationType { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether an access code is required.
+    /// </summary>
+    public bool? UseAccessCode { get; set; }
+
+    /// <summary>
+    /// Gets or sets the final email template ID to be sent to the creator.
+    /// </summary>
+    public int? FinalEmailToCreator { get; set; }
+
+    /// <summary>
+    /// Gets or sets the final email template ID to be sent to the receivers.
+    /// </summary>
+    public int? FinalEmailToReceivers { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this envelope type was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when this envelope type was last changed.
+    /// </summary>
+    public DateTime? ChangedWhen { get; set; }
+
+    /// <summary>
+    /// Gets or sets the number of days before expiry when a warning should be sent.
+    /// </summary>
+    public int? ExpiresWarningDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether reminder emails should be sent.
+    /// </summary>
+    public bool? SendReminderEmails { get; set; }
+
+    /// <summary>
+    /// Gets or sets the number of days before the first reminder is sent.
+    /// </summary>
+    public int? FirstReminderDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets the interval in days between reminder emails.
+    /// </summary>
+    public int? ReminderIntervalDays { get; set; }
+
+    /// <summary>
+    /// Gets or sets the contract type associated with the envelope type.
+    /// </summary>
+    public int? ContractType { get; set; }
 }
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverCreateDto.cs b/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverCreateDto.cs
index 068501b4..c05865bb 100644
--- a/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverCreateDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverCreateDto.cs
@@ -20,7 +20,7 @@ public record ReceiverCreateDto
     }
 
     [EmailAddress]
-    public string EmailAddress { get; init; }
+    public required string EmailAddress { get; init; }
 
     public string? TotpSecretkey { get; init; }
 
diff --git a/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverReadDto.cs b/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverReadDto.cs
index 4f2912a6..c7e7f6ed 100644
--- a/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverReadDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverReadDto.cs
@@ -1,5 +1,4 @@
 using DigitalData.Core.Abstractions;
-using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
 using Microsoft.AspNetCore.Mvc;
 using System.Text.Json.Serialization;
@@ -7,19 +6,27 @@ using System.Text.Json.Serialization;
 namespace EnvelopeGenerator.Application.DTOs.Receiver;
 
 [ApiExplorerSettings(IgnoreApi = true)]
-public record ReceiverReadDto(
-    int Id,
-    string EmailAddress,
-    string Signature,
-    DateTime AddedWhen
-    ) : BaseDTO<int>(Id), IUnique<int>
+public class ReceiverReadDto : IUnique<int>
 {
+    public int Id { get; set; }
+
+    public string EmailAddress { get; set; }
+
+    public string Signature { get; set; }
+
+    public DateTime AddedWhen { get; set; }
+
     [JsonIgnore]
-    public IEnumerable<EnvelopeReceiverBasicDto>? EnvelopeReceivers { get; init; }
+    public IEnumerable<EnvelopeReceiverBasicDto>? EnvelopeReceivers { get; set; }
 
     public string? LastUsedName => EnvelopeReceivers?.LastOrDefault()?.Name;
 
     public string? TotpSecretkey { get; set; } = null;
 
     public DateTime? TfaRegDeadline { get; set; }
-};
\ No newline at end of file
+
+    public override int GetHashCode()
+    {
+        return Id.GetHashCode();
+    }
+}
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverUpdateDto.cs b/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverUpdateDto.cs
index f4d89410..203df159 100644
--- a/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverUpdateDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/Receiver/ReceiverUpdateDto.cs
@@ -3,5 +3,26 @@ using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.DTOs.Receiver;
 
+/// <summary>
+/// Data Transfer Object for updating a receiver's information.
+/// </summary>
 [ApiExplorerSettings(IgnoreApi = true)]
-public record ReceiverUpdateDto(int Id, string? TotpSecretkey = null, DateTime? TfaRegDeadline = null) : IUnique<int>;
\ No newline at end of file
+public class ReceiverUpdateDto : IUnique<int>
+{
+    /// <summary>
+    /// Gets or sets the unique identifier of the receiver.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the TOTP (Time-based One-Time Password) secret key.
+    /// Optional.
+    /// </summary>
+    public string? TotpSecretkey { get; set; }
+
+    /// <summary>
+    /// Gets or sets the deadline for two-factor authentication registration.
+    /// Optional.
+    /// </summary>
+    public DateTime? TfaRegDeadline { get; set; }
+}
\ No newline at end of file
diff --git a/EnvelopeGenerator.Application/DTOs/UserReceiverDto.cs b/EnvelopeGenerator.Application/DTOs/UserReceiverDto.cs
index 5a46789f..b46c3e0c 100644
--- a/EnvelopeGenerator.Application/DTOs/UserReceiverDto.cs
+++ b/EnvelopeGenerator.Application/DTOs/UserReceiverDto.cs
@@ -1,15 +1,46 @@
 using DigitalData.Core.Abstractions;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Application.DTOs
+namespace EnvelopeGenerator.Application.DTOs;
+
+/// <summary>
+/// Data Transfer Object representing a user receiver with associated details.
+/// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
+public class UserReceiverDto : IUnique<int>
 {
-    [ApiExplorerSettings(IgnoreApi = true)]
-    public record UserReceiverDto(
-        int Id,
-        int UserId,
-        int ReceiverId,
-        string Name,
-        string CompanyName,
-        string JobTitle,
-        DateTime AddedWhen) : IUnique<int>;
+    /// <summary>
+    /// Gets or sets the unique identifier of the user receiver.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the identifier of the user associated with the receiver.
+    /// </summary>
+    public int UserId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the identifier of the receiver.
+    /// </summary>
+    public int ReceiverId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the receiver.
+    /// </summary>
+    public string Name { get; set; }
+
+    /// <summary>
+    /// Gets or sets the company name of the receiver.
+    /// </summary>
+    public string CompanyName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the job title of the receiver.
+    /// </summary>
+    public string JobTitle { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp when the user receiver was added.
+    /// </summary>
+    public DateTime AddedWhen { get; set; }
 }
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